 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *
  *******************************************************************************/
 package org.eclipse.update.operations;

 /**
  * Listener for the operation lifecycle. This allows listeners to execute certain code before an operation
  * starts, or after it completes.
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @since 3.0
  */
 public interface IOperationListener {
     /**
      * May be called before an operation starts executing.
      * @param operation operation to listen to
      * @param data info specific to the operation
      * @return not used
      */
     public boolean beforeExecute(IOperation operation, Object data);
     /**
      * May be called after an operation finishes executing.
      * @param operation operation to listen to
      * @param data info specific to the operation
      * @return not used
      */
     public boolean afterExecute(IOperation operation, Object data);
 }

